Ukuhlanzeka komoya kuwuhlobo lwe-International Classification Standard esetshenziswa egumbini elihlanzekile. Imvamisa ukuqeqeshwa kwegumbi elihlanzekile nokwamukelwa okusekelwe esimweni esingenalutho, esibonakalayo kanye nesinamandla. Ukuqina okuqhubekayo kokuhlanzeka komoya nokulawulwa kokungcola kuyizinga elijwayelekile lekhwalithi yegumbi elihlanzekile. I-Class Standard ingahlukaniswa nge-ISO 5 (Class A / Class 100), ISO 6 (Class B / Class 1000), ISO 7 (Class C / Class 10000).
